package com.lingmeng.common.core.result;

import com.lingmeng.common.core.constant.Constants;
import com.lingmeng.common.core.constant.HttpStatus;
import lombok.Getter;
import lombok.Setter;

import java.io.Serializable;

/**
 * 响应信息主体
 *
 * @author ycl
 */
@Getter
@Setter
public class R<T> implements Serializable {
	private static final long serialVersionUID = 1L;

	private int code;

	private String msg;

	private T data;

	public static <T> R<T> ok() {
		return restResult(null, HttpStatus.SUCCESS, null);
	}

	public static <T> R<T> ok(T data) {
		return restResult(data, HttpStatus.SUCCESS, null);
	}

	public static <T> R<T> ok(T data, String msg) {
		return restResult(data, HttpStatus.SUCCESS, msg);
	}

	public static <T> R<T> fail() {
		return restResult(null, Constants.FAIL, null);
	}

	public static <T> R<T> fail(String msg) {
		return restResult(null, Constants.FAIL, msg);
	}

	public static <T> R<T> fail(T data) {
		return restResult(data, Constants.FAIL, null);
	}

	public static <T> R<T> fail(T data, String msg) {
		return restResult(data, Constants.FAIL, msg);
	}

	public static <T> R<T> fail(int code, String msg) {
		return restResult(null, code, msg);
	}

	private static <T> R<T> restResult(T data, int code, String msg) {
		R<T> apiResult = new R<>();
		apiResult.setCode(code);
		apiResult.setData(data);
		apiResult.setMsg(msg);
		return apiResult;
	}

	public static <T> Boolean isError(R<T> ret) {
		return !isSuccess(ret);
	}

	public static <T> Boolean isSuccess(R<T> ret) {
		return HttpStatus.SUCCESS == ret.getCode();
	}
}
